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Alex Jennings

Available to hire

I’m Alex Jennings, a full-stack software engineer based in London, and I enjoy building production-grade products end to end in fast-moving startup environments.

About

I’m Alex Jennings, a full-stack software engineer based in London, and I enjoy building production-grade products end to end in fast-moving startup environments. I specialize in TypeScript, React (including React Native), and Node.js, and I like turning requirements into clear designs, reliable implementations, and iterative improvements with strong ownership.

I also have an AI-enabled development approach using tools like Claude Code, where I speed up development while still validating changes through automated tests, code review, and production monitoring. In recent roles, I’ve worked on scalable systems with AWS, CI/CD, and multi-brand application ecosystems, collaborating closely with product teams and partners to deliver real customer impact.

  • 4 years' experience
  • Joined November 2026

Languages

  • EnglishFluent
  • ItalianIntermediate

Industry experience

  • Software & Internet
  • Computers & Electronics
  • Professional Services

More experts in London, United Kingdom

Work experience

Software Developer · ZIM Connections LtdOct 2022 – Oct 2026 · 4 yrs 1 mo

Owned end-to-end feature delivery in a small engineering team, scaling the platform from under 1,000 to 50,000+ users and from a single app to a multi-brand ecosystem. Built real-time live chat (React Native for customers and a React console for support staff), handling thousands of conversations and large message volume. Delivered a white-label integration for Swiss Federal Railways, translating requirements into a multi-language app release using i18next and Locize. Maintained production APIs (TypeScript/Node.js/NestJS) serving millions of requests with low latency and high availability. Built an internal React admin dashboard to let non-technical staff manage accounts, SIMs and notifications without engineering support. Implemented CI/CD gates, improved automated testing coverage (2,623 tests across 88 suites), and managed containerized production services on AWS with CloudFront, load balancing, PostgreSQL and networking.

Education

BSc (Hons) Digital & Technology Solutions (Software Engineering) · University of Bristol2020 – 2021
Work-based apprenticeship (QA Ltd.) · QA Ltd.2024 – 2027
Software Engineering Bootcamp · Boolean UK2022

Certifications and awards

AWS Certified AI Practitioner2026
AWS Certified Cloud Practitioner2026
AWS Certified Solutions Architect2026

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